ExecStartRHEL 8.2では、SysV initスクリプトが失敗する問題に直面しました。同じ初期化スクリプトとサービス単位設定を使用するRHEL 7.9では、この問題は発生しません。オンラインで多くのリソースを確認しましたが、まだこの問題の根本原因を見つけることができません。バージョンの問題によるものか、RHEL 8.2間のsystemd非互換性のためか。理想的にはサービス単位に変換する必要がありますが、特定の要件のためにそれを行うことはできません。SysV initsystemd
RHEL 8.2systemdバージョン：v239
RHEL 7.9systemdバージョン：v219
/etc/systemd/system/mq.service文書：
[Unit]
Description=MQ service
After=network.target
[Service]
Type=forking
ExecStart=/etc/init.d/rc.mq start
ExecStop=/etc/init.d/rc.mq stop
[Install]
WantedBy=multi-user.target
/etc/init.d/rc.mqスクリプト：
#!/bin/sh
# chkconfig: 35 95 5
function fstart
{
su - mqm -c "strmqm QMNAME" > /dev/null 2>&1
}
function fstop
{
su - mqm -c "endmqm -i QMNAME"
sleep 30
}
case $1 in
start)
fstart
break;;
stop)
fstop
break;;
restart)
fstop
fstart
break;;
*)
fstart
break;;
esac
exit
$ systemctl status mq.service:
● mq.service - MQ service
Loaded: loaded (/etc/systemd/system/mq.service; enabled; vendor preset: disabled)
Active: inactive (dead) since Tue 2021-07-06 16:03:43 +08; 27s ago
Process: 66183 ExecStop=/etc/init.d/rc.mq stop (code=exited, status=0/SUCCESS)
Process: 66084 ExecStart=/etc/init.d/rc.mq start (code=exited, status=0/SUCCESS)
Jul 06 16:03:10 hostname.company.com su[66085]: pam_unix(su-l:session): session opened for user mqm by (uid=0)
Jul 06 16:03:10 hostname.company.com su[66085]: pam_unix(su-l:session): session opened for user mqm by (uid=0)
Jul 06 16:03:11 hostname.company.com su[66085]: pam_unix(su-l:session): session closed for user mqm
Jul 06 16:03:11 hostname.company.com su[66085]: pam_unix(su-l:session): session closed for user mqm
Jul 06 16:03:11 hostname.company.com su[66188]: (to mqm) root on none
Jul 06 16:03:11 hostname.company.com su[66188]: pam_unix(su-l:session): session opened for user mqm by (uid=0)
Jul 06 16:03:11 hostname.company.com su[66188]: pam_unix(su-l:session): session opened for user mqm by (uid=0)
Jul 06 16:03:11 hostname.company.com rc.mq[66183]: IBM MQ queue manager 'QMNAME' ending.
Jul 06 16:03:13 hostname.company.com rc.mq[66183]: IBM MQ queue manager 'QMNAME' ended.
Jul 06 16:03:43 hostname.company.com systemd[1]: Started MQ service.
$ journalctl -xe:
Jul 06 15:10:17 hostname.company.com systemd[1]: Starting MQ service...
-- Subject: Unit mq.service has begun start-up
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit mq.service has begun starting up.
Jul 06 15:10:17 hostname.company.com systemd[1]: Started system activity accounting tool.
-- Subject: Unit sysstat-collect.service has finished start-up
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit sysstat-collect.service has finished starting up.
--
-- The start-up result is done.
Jul 06 15:10:17 hostname.company.com su[62138]: (to mqm) root on none
Jul 06 15:10:17 hostname.company.com su[62138]: pam_unix(su-l:session): session opened for user mqm by (uid=0)
Jul 06 15:10:17 hostname.company.com systemd[1]: Started Session c513 of user mqm.
-- Subject: Unit session-c513.scope has finished start-up
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit session-c513.scope has finished starting up.
--
-- The start-up result is done.
Jul 06 15:10:17 hostname.company.com su[62138]: pam_unix(su-l:session): session opened for user mqm by (uid=0)
Jul 06 15:10:17 hostname.company.com su[62138]: pam_unix(su-l:session): session closed for user mqm
Jul 06 15:10:17 hostname.company.com su[62138]: pam_unix(su-l:session): session closed for user mqm
Jul 06 15:10:17 hostname.company.com su[62245]: (to mqm) root on none
Jul 06 15:10:17 hostname.company.com su[62245]: pam_unix(su-l:session): session opened for user mqm by (uid=0)
Jul 06 15:10:17 hostname.company.com systemd[1]: Started Session c514 of user mqm.
-- Subject: Unit session-c514.scope has finished start-up
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit session-c514.scope has finished starting up.
--
-- The start-up result is done.
Jul 06 15:10:17 hostname.company.com su[62245]: pam_unix(su-l:session): session opened for user mqm by (uid=0)
Jul 06 15:10:17 hostname.company.com rc.mq[62238]: IBM MQ queue manager 'QMNAME' ending.
Jul 06 15:10:19 hostname.company.com rc.mq[62238]: IBM MQ queue manager 'QMNAME' ended.
Jul 06 15:10:19 hostname.company.com su[62245]: pam_unix(su-l:session): session closed for user mqm
Jul 06 15:10:19 hostname.company.com su[62245]: pam_unix(su-l:session): session closed for user mqm
Jul 06 15:10:49 hostname.company.com systemd[1]: Started MQ service.
-- Subject: Unit mq.service has finished start-up
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit mq.service has finished starting up.
--
-- The start-up result is done.
ExecStartこれを変更またはExecStart=/sbin/service rc.mq start実行してみましたが、export _SYSTEMCTL_SKIP_REDIRECT=1まだ同じです。
その理由は何なのか分かりますか？繰り返しますが、この設定はRHEL 7.9で動作します。
編集する**
/etc/pam.d/system-authファイル内のサービスの開始を防ぐための以下のパラメーターが見つかりました。理由は何か知っていますか？
-session optional pam_systemd.so